
/*    This file is part of the managarm operating system.
 *   Copyright (C) 2007, 2008, 2009  Alexander van der Grinten
 *
 *   This program is free software: you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation, either version 3 of the License, or
 *   (at your option) any later version.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program.  If not, see <http://www.gnu.org/licenses/>. */

package org.managarm.jmanaintlib.runtime.system;

import java.io.File;
import org.managarm.jmanaintlib.machine.VmError;

public class RtFile {
	private final File javaFile;
	// list of files this directory contains
	private String[] children;
	
	public RtFile(String string) {
		this(new File(string));
	}
	public RtFile(File javafile) {
		javaFile = javafile;
		if(javaFile.isDirectory())
			children = javaFile.list();
	}
	
	public File getJavaFile() {
		return javaFile;
	}
	
	public String getIdent() {
		return javaFile.getName();
	}
	
	public RtFile getParent() {
		if(javaFile.getParent() == null)
			return null;
		return new RtFile(javaFile.getParent());
	}
	
	public RtFile getChild(int index) {
		return new RtFile(children[index]);
	}
	
	public long getSize() {
		if(javaFile.isDirectory())
			return children.length;
		return javaFile.length();
	}
	
	public int getNodeType() throws VmError {
		if(javaFile.exists() == false)
			return 0;
		if(javaFile.isFile())
			return 1;
		if(javaFile.isDirectory())
			return 2;
		throw new VmError("Illegal file node");
	}
}
